CN101422039B - Transmission stream generating device for generating transmission stream which additional data is stuffed in a payload area of a packet, digital broadcast transmitting/receiving device for transmitting/receiving transmission stream and method - Google Patents
Transmission stream generating device for generating transmission stream which additional data is stuffed in a payload area of a packet, digital broadcast transmitting/receiving device for transmitting/receiving transmission stream and method Download PDFInfo
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- CN101422039B CN101422039B CN2007800127246A CN200780012724A CN101422039B CN 101422039 B CN101422039 B CN 101422039B CN 2007800127246 A CN2007800127246 A CN 2007800127246A CN 200780012724 A CN200780012724 A CN 200780012724A CN 101422039 B CN101422039 B CN 101422039B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
- H03M13/235—Encoding of convolutional codes, e.g. methods or arrangements for parallel or block-wise encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0059—Convolutional codes
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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Abstract
An apparatus for generating a transport stream (TS) is provided. The apparatus includes an adapter for receiving common data and generating stream having multiple packages, while in some of the packages an adaptive field is provided; and a inserting device fro inserting additive data into all the payload area in some of the packages without adapting area. Because sending additive data need not special adaptive field head, the data transmission rate is improved.
Description
Technical field
The present invention relates to digital broadcast transmission/receiving system and the method thereof of a kind of transport stream (TS) generation device, transmission/reception TS, more particularly, relate to the digital broadcast transmission/receiving system and the method thereof of stream that the payload area that utilizes bag is filled supplementary data and produced TS generation device, transmission/the receptions generation of TS.
Background technology
The appearance of the electronics and the communication technology has brought the digitlization of broadcast system, therefore, provides various standards for digital broadcasting.The example of these broadcast standards is towards the ATSC VSB standard of the U.S. with towards the DVB-T standard in Europe.These two kinds of standards have many differences, as the method for audio compression, channel bands, number of carriers etc.
8-VSB system definition VSB Frame towards the U.S. comprises two, and every comprises one as field synchronization segments and 312 other data segments of first section.The corresponding MPEG-2 bag of a section of VSB Frame, 4 symbols and 828 the data symbols that the section section of comprising is synchronous.
According to this frame standard, need to use the specific field in the adaptation field, to send the data except general data.In the case, must provide length is that the adaptation field header of two bytes is with the adaptation field in the definition bag.
Therefore, volume of transmitted data descend the part of occupying with adaptation field header as many, and data transmission efficiency reduces.
Disclosure of the Invention
Technical problem
Provide the present invention to overcome the problems referred to above, therefore, target of the present invention provides the TS generation device that a kind of payload area that utilizes bag in the process that produces transport stream (TS) fills supplementary data (therefore can improve data transmission efficiency, wherein, if adaptation field header is used, data transmission efficiency can reduce) and transmission/reception produce digital broadcast transmission/receiving equipment and the method thereof of TS.
Technical scheme
According to an illustrative embodiment of the invention that realizes above target, a kind of transport stream (TS) generation device is provided, and described device comprises: adapter unit receives general data, structure has the stream of a plurality of bags, and provides adaptation field in some bags of described a plurality of bags; Filler cells is filled into supplementary data in the whole payload area of some bags that do not have adaptation field of described a plurality of bags.
Filler cells can be divided and be filled in the whole payload area of the bag with adaptation field a plurality of supplemental data packets.
Filler cells can be divided and be filled in the whole payload area of the bag of first in the bag with adaptation field a plurality of supplemental data packets, and a supplemental data packets can be inserted in the whole payload area of the bag of second in the bag with adaptation field.
The adapter unit definable has the bag of new PID, and can produce the stream of the bag with definition, and wherein, filler cells is filled into supplementary data in the whole payload area of bag of definition.
Adapter unit can offer the adaptation field of pre-sizing general data and be written to bag in the payload area, and described adaptation field comprises adaptation field header and adaptation field payload.
Preferably, filler cells can be filled supplementary data by this way, wherein, with the corresponding interval of the bag of predetermined quantity, the pattern of described a plurality of bags that constitutes stream is identical, the described predetermined quantity and several 12 the factor are corresponding.
More preferably, supplementary data can comprise the Turbo coded data.
A kind of according to an exemplary embodiment of the present invention digital broadcast transmission apparatus comprises: transport stream (TS) generation device, receive general data, and produce and have the stream of a plurality of bags, and supplementary data is filled in the payload area of some bags of described a plurality of bags; Randomizer, randomization is carried out in convection current; Replenish reference signal (SR) tucker, SRS is filled in each bag of randomized stream; The result is modulated and exported to transmission signals processor, convection current.
Simultaneously, a kind of according to an exemplary embodiment of the present invention transport stream (TS) production method can comprise: (a) receive general data, produce the stream with a plurality of bags, and provide adaptation field in some bags of described a plurality of bags; (b) supplementary data is filled in the whole payload area of bag with adaptation field.
Step (b) can divide and be filled in the whole payload area of the bag with adaptation field a plurality of supplemental data packets.
Step (b) can divide and be filled in the whole payload area of the bag of first in the bag with adaptation field a plurality of supplemental data packets, and a supplemental data packets can be filled in the whole payload area of the bag of second in the bag with adaptation field.
Step (a) definable has the bag of new PID, and produces the stream of the bag with definition, and step (b) can be filled into supplementary data in the whole payload area of bag of definition.
Step (a) can offer the adaptation field of pre-sizing general data and be written to bag in the payload area, and described adaptation field comprises adaptation field header and adaptation field payload.
Step (b) can be filled supplementary data by this way, wherein, with the corresponding interval of the bag of predetermined quantity, the pattern of described a plurality of bags that constitutes stream is identical, the described predetermined quantity and several 12 the factor are corresponding.Supplementary data can comprise the Turbo coded data.
A kind of according to an exemplary embodiment of the present invention digital broadcasting receiving apparatus can comprise: demodulator, and receive and to have the transport stream (TS) of a plurality of bags, wherein, supplementary data is filled in the whole payload area of some bags of described a plurality of bags; Equalizer carries out equilibrium to the TS of demodulation; Data processor detects common data stream and supplementary data stream from the bag payload area of the TS of equilibrium, and the stream that detects is decoded to recover general data and supplementary data.
Demodulator can receive the transport stream (TS) in the whole payload area that a plurality of supplemental data packets were divided and were filled into the bag with adaptation field.
Demodulator can receive such transport stream (TS), in described transport stream (TS), a plurality of supplemental data packets are divided and are filled in the whole payload area of the bag of first in the bag with adaptation field, and a supplemental data packets is filled in the whole payload area of the bag of second in the bag with adaptation field.
Demodulator can receive such transport stream (TS), and in described transport stream (TS), supplementary data is filled by this way, wherein, with the corresponding interval of the bag of predetermined quantity, the pattern of described a plurality of bags that constitutes stream is identical, the described predetermined quantity and several 12 the factor are corresponding.
Data processor can comprise: MUX, from the TS detection common data stream and the supplementary data stream of equilibrium; Decoder is decoded to the common data stream that detects; Supplementary data decoder is decoded to the supplementary data stream that detects; The stream tucker will be filled in the supplementary data stream of supplementary data decoder decoding from the decoded stream of decoder output; Deinterleaver deinterleaves to the TS that handles at stream handle; The RS decoder carries out the Read-Solomon decoding to the TS that deinterleaves; Remove randomizer, the TS that RS is decoded goes randomization; Demodulation multiplexer is to going randomized TS to carry out demultiplexing, to recover general data and supplementary data.
Data processor can comprise: MUX, detect common data stream and supplementary data stream from balanced TS; First processor is decoded to recover general data to the common data stream that detects; Second processor is decoded to the supplementary data stream that detects, to recover supplementary data.
First processor can comprise: decoder, and the common data stream among the TS of equilibrium is carried out error correction, and the common data stream of error correction is decoded; First deinterleaver deinterleaves to the stream from decoder output; Read-Solomon (RS) decoder carries out the RS decoding to the stream that deinterleaves; First removes randomizer, and the stream that RS is decoded goes randomization, to recover general data.
Second processor can comprise: supplementary data decoder, the supplementary data stream in the transport stream (TS) of equilibrium is decoded; Second deinterleaver deinterleaves to the stream from supplementary data decoder output; The parity check bit remover is removed parity check bit from the stream that deinterleaves of second deinterleaver; Second removes randomizer, and the TS that removes parity check bit is gone randomization; Data recovery unit is recovered supplementary data from remove randomized stream.
The method that a kind of according to an exemplary embodiment of the present invention digital broadcasting receives can comprise: (a) reception has the transport stream (TS) of a plurality of bags, and the TS that receives is carried out demodulation, and wherein, supplementary data is filled in the whole payload area of some bags; (b) TS to demodulation carries out equilibrium; (c) payload area from the bag of the TS of equilibrium detects common data stream and supplementary data stream; (d) stream that detects is decoded to recover general data and supplementary data.
Step (a) can receive the transport stream (TS) in the whole payload area that a plurality of supplementary data stream were divided and were filled into the bag with adaptation field.
Step (a) can receive such transport stream (TS), in described transport stream (TS), a plurality of supplemental data packets are divided and are filled in the whole payload area of the bag of first in the bag with adaptation field, and a supplemental data packets is filled in the whole payload area of the bag of second in the bag with adaptation field.
Step (a) can receive such transport stream (TS), and in described transport stream (TS), supplementary data is filled by this way, wherein, with the corresponding interval of the bag of predetermined quantity, the pattern of described a plurality of bags that constitutes stream is identical, the described predetermined quantity and several 12 the factor are corresponding.
Beneficial effect
According to the present invention, in the process that produces stream, fill supplementary data by the payload area that utilizes bag.Therefore,, send supplementary data, as a result of, also can improve data transmission efficiency, wherein,, then can reduce data transmission efficiency if use adaptation field header even needn't use adaptation field according to bag.
Description of drawings
Fig. 1 is the block diagram of transport stream (TS) generation device according to an exemplary embodiment of the present invention;
Fig. 2 is the block diagram of digital broadcast transmission apparatus according to an exemplary embodiment of the present invention;
Fig. 3 and Fig. 4 are provided to explain the various examples of the structure of the stream that produces at this TS generation device;
Fig. 5 is the flow chart for explaining that the method produce transport stream (TS) according to an exemplary embodiment of the present invention provides;
Fig. 6 is the block diagram of digital broadcasting receiving apparatus according to an exemplary embodiment of the present invention;
Fig. 7 and Fig. 8 are the block diagrams that provides for the various examples of explaining according to the structure of digital broadcasting receiving apparatus of the present invention;
Fig. 9 is the flow chart that provides for the method for explaining the reception of digital broadcasting according to an exemplary embodiment of the present invention.
Embodiment
Fig. 1 is the block diagram of transport stream (TS) generation device according to an exemplary embodiment of the present invention.With reference to Fig. 1, TS generation device 100 comprises adapter unit 110 and filler cells 120.
The adaptation field that uses adaptively is provided in the part of bag.Adaptation field comprises adaptation field header (AF head), Optional Field and fill area.Record is about the information of the position of adaptation field and size etc. in the AF head.Optional Field is used for optionally service routine clock reference (PCR) sign, original program clock reference (OPCR) sign, splice point sign, private data flag or adaptation field extension sign.The fill area is the zone that can add supplementary data.
If supplementary data will be filled in the whole payload area of bag, then adapter unit 110 does not produce the adaptation field of bag.Because in supplementary data is filled into the bag of whole payload area, do not use additional areas (as, adaptation field header), so data transmission rate is improved.
Though not shown among Fig. 1, TS generation device 100 also can comprise the assembly such as reed-solomon (RS) encoder (not shown), interleaver (not shown) and reproducer.The RS encoder can receive supplementary data from the outside, and carries out the RS coding.That is, the RS encoder can receive the supplementary data stream that comprises the synchronizing signal zone.Supplementary data stream can comprise the bag of 188 bytes altogether, wherein can comprise the head of the synchronizing signal of 1 byte, 3 bytes and the supplementary data of 184 bytes.The RS encoder is removed synchronizing signal from supplementary data stream, calculate the parity about supplementary data region, and interpolation length is the parity check bit of 20 bytes.Therefore, the bag to the final result of supplementary data stream encryption comprises 207 bytes altogether.This wherein, 3 byte allocation are given head, 184 byte allocation are given supplementary data, 20 byte allocation are given parity check bit.The interleaver (not shown) interweaves to the supplementary data stream of RS coding, and the result is offered the reproducer (not shown).Reproducer produces the parity check bit fill area in supplementary data stream, and supplementary data stream is offered filler cells.Therefore, during the processing that sends the stream that produces,, can handle supplementary data more con vigore by filling the parity check bit of supplementary data stream.
Fig. 2 is the block diagram of digital broadcast transmission apparatus according to an exemplary embodiment of the present invention.With reference to Fig. 2, digital broadcast transmission apparatus comprises TS generation device 100, randomizer 210, replenishes reference signal tucker 220 and TS processor 230.
210 pairs of streams from 100 outputs of TS generation device of randomizer carry out randomization.
Replenish reference signal (SRS) tucker 220 and can fill additional reference signal at the bag that in randomized stream, provides.SRS refers to digital broadcast transmission apparatus and digital broadcasting receiving apparatus known sequences.SRS can be inserted in the stream data as a supplement, and SRS can be sent out, thereby receiving system can be carried out synchronously and channel equalization.
If have adaptation field in the bag, then SRS tucker 220 can be filled into SRS in the adaptation field.As for the bag that does not have adaptation field, that is, if bag has the supplementary data that is filled into payload area, then SRS can be filled into payload area with supplementary data.
230 pairs of streams from 220 outputs of SRS tucker of TS processor are modulated, and send by radio frequency (RF) channel.
Specifically, TS processor 230 can be configured to comprise RS encoder (not shown), interleaver (not shown), trellis encoder (not shown), MUX (not shown), pilot tone inserter (not shown), VSB modulator (not shown) and RF upconverter (not shown).For the brief function of explaining composed component, the RS encoder is carried out the RS coding adding parity byte to TS, thereby can correct the error that channel characteristic during the transmission causes.Interleaver interweaves to the RS coded data according to interlacing rule, and trellis encoder is carried out grid coding to these data.Thereafter, MUX is inserted into field synchronization and section the TS of grid coding synchronously.The pilot tone inserter inserts pilot tone by the DC value being added to from the signal of MUX output.Thereafter, the VSB modulator is carried out the VSB modulation, and the RF upconverter will be converted to RF channel band signal on the signal, and passes through antenna output signal.As explained above, the conversion of signals that TS processor 230 will produce at TS generation device 100 is the single-carrier signal of time domain, and the output result.
Simultaneously, TS processor 230 can comprise that also Turbo processor (not shown) is to carry out more strong decoding to supplementary data.The Turbo processor can come supplementary data is encoded by detecting supplementary data stream from stream, calculating and to be filled into the parity check bit fill area about the parity of supplementary data stream and with parity check bit.Then, the Turbo processor can interweave to the supplementary data stream of coding, and fills it in the described stream, thus the described stream of restructural.
Fig. 3 and Fig. 4 are provided to explain the various structures of the stream that produces at the TS of Fig. 1 or Fig. 2 generation device.With reference to Fig. 3, a stream comprises that (1～n), each bag is divided into head and payload area to a plurality of bags.
At first with reference to Fig. 3, first bag 1 is divided into and comprises synchronously and the head region of Packet Identifier (PID), and comprises the payload area that SRS and Turbo flow (TS1), TS2, TS3.That is, not have adaptation field be conspicuous to first bag 1.Supplementary data TS1, TS2, TS3 as SRS are filled in the whole payload area of first bag 1.As explained above, filler cells 120 can distribute a plurality of supplemental data packets TS1 to TS2 and be filled in the payload area of the bag that adaptation field is not set.In addition, SRS tucker 220 can with SRS as a supplement data be inserted into the payload area of bag.
In second bag 2, SRS and TS3 are filled into whole payload area.As explained above, filler cells 120 can be filled into a supplemental data packets TS3 payload area of the bag that adaptation field is not set.
Provide three guarantees 3 and the 4th bag 4 to be used for the transmission of general data.The adaptation field that is provided by adapter unit 110 is provided for these bags 3 and bag 4.SRS tucker 220 is filled into SRS the payload area of adaptation field.Therefore, the AF head is conspicuous by defining together.
To wrap 1 identical mode producing the 5th bag 5 with first.That is be the pattern that the cycle repeats each bag, with 4 bags.As explained above, filler cells 120 can be filled into supplementary data in the bag in the precalculated position, thereby can arrange a plurality of bags by this way, and is wherein, identical in the pattern of the bag in precalculated position.More particularly, repeat to produce one group 4 bags (G1 ..., G-m).
The quantity of the bag in the one-period can be set according to the quantity of trellis encoder block (not shown).For example, if there are 12 trellis encoder block (not shown)s of carrying out stream encryption, then filler cells 120 is filled supplementary data by this way, and is wherein, identical in the pattern of the bag of per the first, second, third, fourth, the 6th or the 12 (these are factors of several 12) position.Like this, the big I of accessible supplementary data region is expanded as wide as possible in the trellis encoder block.
Fig. 4 illustrates from the bag of a bag shown in Figure 4 with the different mode configuration.With reference to Fig. 4, only be filled with in first bag of supplementary data stream (SRS, TS1, TS2, TS3) and second bag and do not have AF, and the three guarantees and the 4th that are filled with supplementary data (SRS, TS4) and normal stream (NS) have AF in wrapping.More particularly, SRS is filled in the payload area of first bag and second bag, and is filled among the AF of three guarantees and the 4th bag.By utilizing the AF head that takies 2 bytes in each bag can improve data transmission rate.
Fig. 5 is the flow chart that the method that produces TS according to an exemplary embodiment of the present invention is shown.According to the method for this generation TS, at first, general data is received (S510), and therefore, the stream with a plurality of bags is configured (S520).Specifically, new PID of definable and interpolation bag.In this case, only in some bags, create adaptation field.Can arrange the bag that has the bag of adaptation field and do not have adaptation field according to preassigned pattern.For example, can arrange bag with the ratio of Fig. 3 and 2:2 shown in Figure 4, or arrange bag with various ratios (as 1:1,1:3,3:3 etc.).
Supplementary data be filled in the whole payload area of bag with adaptation field (S530) thereafter.In this case, supplementary data can be the Turbo coded data.Supplementary data also can comprise SRS.Because supplementary data is filled in the normal payload region of bag,, therefore, omit these zones so do not need to provide zone such as adaptation field header.Simultaneously, if bag has adaptation field, then supplementary data is filled into adaptation field.Therefore, adaptation field header can distinguish the general data that is filled in the normal payload region with the supplementary data that is filled in the adaptation field.
Fig. 6 is the block diagram of digital broadcasting receiving apparatus according to an exemplary embodiment of the present invention.With reference to Fig. 6, digital broadcasting receiving apparatus comprises demodulator 610, equalizer 620 and data processor 700.
The TS of 620 pairs of demodulation of equalizer carries out equilibrium.If there is SRS in the supplementary data, then equalizer 620 can use SRS to carry out channel equalization.
Fig. 7 and Fig. 8 have the block diagram that the exemplary configurations of digital broadcasting receiving apparatus of the data processor 700 of various structures provides for explanation.
With reference to Fig. 7, data processor 700 comprises MUX710, decoder 720, supplementary data decoder 730, stream tucker 740, deinterleaver 750, RS decoder 760 and removes randomizer 770.
MUX710 detects common data stream and supplementary data stream from the TS of equilibrium.In this case, MUX710 detects supplementary data stream according to the pattern of giving birth to the bag of using in the processing in miscarriage from the precalculated position, and from other position probing common data stream.If the pattern of the bag of the predetermined period of a factor based on several 12 is identical, then can periodically checks the position of filling in the supplementary data stream, and detect supplementary data stream.The common data stream that detects is offered decoder 720, supplementary data stream is offered supplementary data decoder 730.
720 pairs of common data stream that provide of decoder are decoded, and the result is offered stream tucker 740.
730 pairs of supplementary data stream that provide of supplementary data decoder are decoded.That is, supplementary data decoder 730 can be decoded to the Turbo coded data.Specifically, supplementary data decoder 730 can comprise grid decoder (not shown), outer deinterleaver (not shown), external interleaver (not shown), outer map decoder (not shown), frame formatter (not shown) and symbol deinterleaver (not shown).
Grid decoder carries out trellis decode to the supplementary data stream that provides, and outer deinterleaver deinterleaves to the stream of trellis decode.Outer map decoder can be carried out convolution decoder to the stream that deinterleaves.Outer map decoder is exported soft-decision output or hard decision output according to the result of convolution decoder.The hard decision output of outer map decoder, that is, hard decision stream is provided for frame formatter, and frame formatter formats according to the hard decision stream of double T S frame to convolution decoder.Symbol deinterleaver can deinterleave by the stream to frame formatting from the symbolic unit to the byte unit.Simultaneously, if from outer map decoder output soft-decision, then external interleaver interweaves to supplementary data stream, and the result is offered grid decoder.Grid decoder re-executes trellis decode to the stream that interweaves, and the result is offered outer deinterleaver.Outer deinterleaver is carried out once more and is deinterleaved, and the result is offered outer map decoder.The operation that can carry out grid decoder, outer deinterleaver and external interleaver repeatedly is output up to hard decision.Therefore, can obtain the reliable decoding value.
As explained above, also supplementary data stream of handling in supplementary data decoder 730 and the common data stream of handling at decoder 720 can be offered stream tucker 740.
750 couples of TS that handle at stream tucker 740 of deinterleaver deinterleave, and 760 couples of TS that deinterleave of RS decoder carry out the RS decoding.
Go the TS of 770 pairs of RS decodings of randomizer to go randomization.780 pairs of demodulation multiplexers go randomized TS to carry out demultiplexing, to recover general data and supplementary data.
Simultaneously, can realize according to digital broadcasting receiving apparatus of the present invention with structure shown in Figure 8.With reference to Fig. 8, data processor 700 comprises MUX810, first processor 820 and second processor 830.
MUX810 divides common data stream and supplementary data stream from the TS of equilibrium, and the result is offered the first processor 820 and second processor 830.
820 pairs of common data stream of first processor are decoded, to recover general data.That is, first processor 820 comprises that decoder 821, first deinterleaver 822, RS decoder 823 and first remove randomizer 824.
821 pairs of common data stream of decoder are decoded, and the stream of 822 pairs of decodings of first deinterleaver deinterleaves.823 pairs of streams that deinterleave of RS decoder carry out the RS decoding, and first goes 824 pairs of streams from 823 outputs of RS decoder of randomizer to go randomization, to recover general data.
830 pairs of supplementary data stream of second processor are decoded to recover supplementary data.That is, second processor 830 comprises that supplementary data decoder 831, second deinterleaver 832, parity check bit remover 833, second go randomizer 834 and data recoverer 835.
The supplementary data stream that 831 couples of MUX810 of supplementary data decoder provide is decoded, and the supplementary data stream of 832 pairs of decodings of second deinterleaver deinterleaves.Parity check bit remover 833 is removed the parity check bit that adds in the supplementary data stream, and second goes 834 pairs of supplementary data diffluence randomizations of removing parity check bit of randomizer.
Fig. 9 is the flow chart for explaining that digital broadcast receiving method according to an exemplary embodiment of the present invention provides.With reference to Fig. 9, digital broadcast receiving method receives the TS that supplementary data is filled into the whole payload area of some bags, and the TS demodulation (S910) to receiving.The stream that receives can have and Fig. 3 and the identical structure of structure shown in Figure 4.
That is, the stream of reception can have such structure, and wherein, a plurality of supplementary data stream are filled into the whole payload area of the bag with adaptation field.
In addition, the stream that receives can have such structure, wherein, a plurality of supplemental data packets are divided and are filled in the whole payload area of some bags (first bag) in the bag with adaptation field, and a supplemental data packets is filled in the whole payload area of the some other bag (second bag) in the bag with adaptation field.
Separated timing (S910) when the stream that receives, the stream of processing is by balanced (S920).
From balanced flow detect common data stream and supplementary data stream (S930) thereafter.In this case, can detect supplementary data stream from the precalculated position according to the pattern of the bag of the stream that receives, and can be from other position probing to common data stream.In other words, because the position supplementary data at the interval of the bag of predetermined quantity in process of transmitting is filled, wherein, the described predetermined quantity and several 12 the factor are corresponding, so can determine to be filled with the position of the bag of supplementary data, if therefore the pattern of the bag of predetermined space is identical, then supplementary data stream can be detected.
Because supplementary data stream and common data stream are detected respectively, so flow decoded to recover supplementary data and general data (S940).Below explain the processing of convection current with reference to Fig. 7 and digital broadcasting receiving apparatus shown in Figure 8 in detail, therefore, will omit detailed explanation for the sake of clarity.
Though represented and described some embodiments of the present invention, it should be appreciated by those skilled in the art that under the situation that does not break away from the principle of the present invention that limits its scope by claim and equivalent thereof and spirit, can make amendment to these embodiment.
Utilizability on the industry
The present invention is applicable to broadcast data is configured to broadcast system streamed and transmission and receiving data stream.
Claims (16)
1. transmission stream generating device comprises:
Adapter unit is formed and is comprised predefined stream with bag of new PID, thereby supplementary data can be filled in some bags;
Insert the unit, supplementary data inserted in the stream of adapter unit composition,
Wherein, insert the whole payload area that the unit inserts supplementary data at least one bag of forming stream.
2. transmission stream generating device as claimed in claim 1 also comprises:
Reproducer, composition can be inserted into the supplementary data of stream, and provides supplementary data to inserting the unit.
3. transmission stream generating device as claimed in claim 2 also comprises:
Coding unit carries out the RS coding to supplementary data;
Interleaver interweaves to the supplementary data of encoding, and provides the supplementary data that interweaves to reproducer.
4. transmission stream generating device as claimed in claim 1 also comprises:
Replenish the reference signal tucker, known sequences is inserted the payload area of described at least one bag of forming stream.
5. digital broadcast transmission apparatus comprises:
Transmission stream generating device is handled the supplementary data with sane anti-mistake, and composition can insert the stream of supplementary data, and supplementary data is inserted in the stream;
Send signal processing unit, convection current is encoded and is sent described stream,
Wherein, transmission stream generating device comprises:
Adapter unit is formed and is comprised predefined stream with bag of new PID, thereby supplementary data can be filled in some bags;
Insert the unit, supplementary data is inserted the whole payload area of at least one bag of the stream of forming by adapter unit.
6. digital broadcast transmission apparatus as claimed in claim 5, wherein, described transmission stream generating device also comprises:
Reproducer, composition can be inserted into the supplementary data of stream, and provides supplementary data to inserting the unit.
7. digital broadcast transmission apparatus as claimed in claim 6, wherein, described transmission stream generating device also comprises:
Coding unit carries out the RS coding to supplementary data;
Interleaver interweaves to the supplementary data of encoding, and provides the supplementary data that interweaves to reproducer.
8. digital broadcast transmission apparatus as claimed in claim 5 also comprises:
Replenish the reference signal tucker, known sequences is inserted the payload area of described at least one bag of forming stream.
9. digital broadcast transmission apparatus as claimed in claim 5 wherein, sends signal processing unit and comprises:
Reed-solomon encoder is encoded to the stream that described transmission stream generating device produces;
Interleaver interweaves to the stream of encoding:
Trellis encoder is carried out grid coding to the stream that interweaves.
10. transport stream production method comprises:
Form and comprise predefined stream, thereby supplementary data can be filled in some bags with bag of new PID;
Supplementary data is inserted in the described stream,
Wherein, supplementary data is inserted the whole payload area of at least one bag of forming described stream.
11. transport stream production method as claimed in claim 10 also comprises step:
Composition can be inserted into the supplementary data of stream.
12. transport stream production method as claimed in claim 11 before forming supplementary data, also comprises step:
Supplementary data is carried out the RS coding;
Supplementary data to coding interweaves.
13. a method for stream processing that is used for digital broadcast transmission apparatus, described method comprises:
By handling the supplementary data with sane anti-mistake, composition can insert the stream of supplementary data, and supplementary data is inserted in the stream, produces transport stream;
By described stream being encoded and sending described stream, handle described transport stream;
Wherein, the step that produces transport stream comprises: form and comprise predefined stream with bag of new PID, thereby supplementary data can be filled in some bags;
Supplementary data is inserted the whole payload area of at least one bag of forming described stream.
14. method for stream processing as claimed in claim 13, wherein, the step that produces transport stream also comprises:
Composition can be inserted into the supplementary data of stream.
15. method for stream processing as claimed in claim 14, wherein, before forming supplementary data, the method that produces transport stream also comprises:
Supplementary data is carried out the RS coding;
Supplementary data to coding interweaves.
16. method for stream processing as claimed in claim 13, wherein, the step of handling transport stream comprises:
Described stream is carried out the Reed-Solomon coding;
Stream to coding interweaves;
The stream that interweaves is carried out grid coding.
Applications Claiming Priority (3)
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| US81407006P | 2006-06-16 | 2006-06-16 | |
| US60/814,070 | 2006-06-16 | ||
| PCT/KR2007/002953 WO2007145497A1 (en) | 2006-06-16 | 2007-06-18 | Transmission stream generating device for generating transmission stream which additional data is stuffed in a payload area of a packet, digital broadcast transmitting/receiving device for transmitting/receiving the transmission stream, and methods thereof |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910174010A Division CN101674393A (en) | 2006-06-16 | 2007-06-18 | Digital broadcast receiver and method thereof |
| CN2009101740110A Division CN101674394B (en) | 2006-06-16 | 2007-06-18 | Digital broadcast receiver and method thereof |
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| Publication Number | Publication Date |
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| CN101422039A CN101422039A (en) | 2009-04-29 |
| CN101422039B true CN101422039B (en) | 2011-04-06 |
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| CN2007800127246A Active CN101422039B (en) | 2006-06-16 | 2007-06-18 | Transmission stream generating device for generating transmission stream which additional data is stuffed in a payload area of a packet, digital broadcast transmitting/receiving device for transmitting/receiving transmission stream and method |
| CN200910174010A Pending CN101674393A (en) | 2006-06-16 | 2007-06-18 | Digital broadcast receiver and method thereof |
| CN2009101740110A Active CN101674394B (en) | 2006-06-16 | 2007-06-18 | Digital broadcast receiver and method thereof |
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| CN2009101740110A Active CN101674394B (en) | 2006-06-16 | 2007-06-18 | Digital broadcast receiver and method thereof |
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| EP (4) | EP2152005A3 (en) |
| KR (3) | KR101486318B1 (en) |
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| BR (3) | BRPI0722371A2 (en) |
| CA (3) | CA2686278C (en) |
| MX (2) | MX2008015382A (en) |
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| KR101253176B1 (en) * | 2006-11-02 | 2013-04-10 | 엘지전자 주식회사 | Digital broadcasting system and data processing method |
| JP2011049667A (en) * | 2009-08-25 | 2011-03-10 | Panasonic Corp | Data processor and data processing method |
| WO2013076156A1 (en) | 2011-11-21 | 2013-05-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Interleaving for layer-aware forward error correction |
| EP3697100A1 (en) * | 2013-06-05 | 2020-08-19 | Sun Patent Trust | Data decoding method, data decoding apparatus, and data transmitting method |
| CN106534896B (en) * | 2016-11-25 | 2019-06-18 | 北京数码视讯科技股份有限公司 | A kind of transmission method and device of transport stream TS |
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